Heat pump systems typically consist of two units, one outdoors and one indoors, connected by copper tubing that passes ...

It's not as simple as having a tree-hugging son. Making the switch to a heat pump takes a little more forethought.

Through a series of simulations, the group designed a 1 kW heat pump system for a UK 91 m 2 semi-detached house with hydronic heat distribution and 50 mm external wall insulation added.